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<TITLE>[Chapter 28] 28.22 java.net.URL (JDK 1.0)</TITLE>
<META NAME="author" CONTENT="David Flanagan">
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<DIV CLASS=sect1>
<h2 CLASS=sect1><A CLASS="TITLE" NAME="JNUT2-CH-28-SECT-22">28.22 java.net.URL (JDK 1.0)</A></h2>

<DIV CLASS=sect2>
<h3 CLASS=sect2><A CLASS="TITLE" NAME="JNUT2-CH-28-SECT-22.1"></A></h3>
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<P CLASS=para>
This class represents a URL (a Uniform Resource Locator) 
and allows the data referred to by the URL
to be downloaded. A URL may be specified as a single string
or with separate protocol, host, port, and file
specifications. Relative URLs may also be specified with a
<tt CLASS=literal>String</tt> and the <tt CLASS=literal>URL</tt> object that it is
relative to.

<P CLASS=para>
<tt CLASS=literal>getFile()</tt>, <tt CLASS=literal>getHost()</tt>, <tt CLASS=literal>getPort()</tt>,
<tt CLASS=literal>getProtocol()</tt>, and <tt CLASS=literal>getRef()</tt> return the
various portions of the URL specified by a <tt CLASS=literal>URL</tt>
object. <tt CLASS=literal>sameFile()</tt> determines whether a <tt CLASS=literal>URL</tt>
object refers to the same file as this one.

<P CLASS=para>
The data or object referred to by a URL may be downloaded
from the Internet in three ways: through a
<tt CLASS=literal>URLConnection</tt> created with <tt CLASS=literal>openConnection()</tt>,
through an <tt CLASS=literal>InputStream</tt> created by
<tt CLASS=literal>openStream()</tt>, or through <tt CLASS=literal>getContent()</tt>, which
returns the URL contents directly, if an appropriate
<tt CLASS=literal>ContentHandler</tt> can be found.

<DIV CLASS=screen>
<P>
<PRE>
public final class <tt CLASS=literal>URL</tt> extends Object implements Serializable {
    // <tt CLASS=literal>Public Constructors</tt>
            public <tt CLASS=literal>URL</tt>(String <tt CLASS=literal>protocol</tt>, String <tt CLASS=literal>host</tt>, int <tt CLASS=literal>port</tt>, String <tt CLASS=literal>file</tt>) throws MalformedURLException;
            public <tt CLASS=literal>URL</tt>(String <tt CLASS=literal>protocol</tt>, String <tt CLASS=literal>host</tt>, String <tt CLASS=literal>file</tt>) throws MalformedURLException;
            public <tt CLASS=literal>URL</tt>(String <tt CLASS=literal>spec</tt>) throws MalformedURLException;
            public <tt CLASS=literal>URL</tt>(URL <tt CLASS=literal>context</tt>, String <tt CLASS=literal>spec</tt>) throws MalformedURLException;
    // <tt CLASS=literal>Class Methods</tt>
            public static synchronized void <tt CLASS=literal>setURLStreamHandlerFactory</tt>(URLStreamHandlerFactory <tt CLASS=literal>fac</tt>);
    // <tt CLASS=literal>Public Instance Methods</tt>
            public boolean <tt CLASS=literal>equals</tt>(Object <tt CLASS=literal>obj</tt>);  //<tt CLASS=literal> Overrides Object</tt>
            public final Object <tt CLASS=literal>getContent</tt>() throws IOException;
            public String <tt CLASS=literal>getFile</tt>();
            public String <tt CLASS=literal>getHost</tt>();
            public int <tt CLASS=literal>getPort</tt>();
            public String <tt CLASS=literal>getProtocol</tt>();
            public String <tt CLASS=literal>getRef</tt>();
            public int <tt CLASS=literal>hashCode</tt>();  //<tt CLASS=literal> Overrides Object</tt>
            public URLConnection <tt CLASS=literal>openConnection</tt>() throws IOException;
            public final InputStream <tt CLASS=literal>openStream</tt>() throws IOException;
            public boolean <tt CLASS=literal>sameFile</tt>(URL <tt CLASS=literal>other</tt>);
            public String <tt CLASS=literal>toExternalForm</tt>();
            public String <tt CLASS=literal>toString</tt>();  //<tt CLASS=literal> Overrides Object</tt>
    // <tt CLASS=literal>Protected Instance Methods</tt>
            protected void <tt CLASS=literal>set</tt>(String <tt CLASS=literal>protocol</tt>, String <tt CLASS=literal>host</tt>, int <tt CLASS=literal>port</tt>, String <tt CLASS=literal>file</tt>, String <tt CLASS=literal>ref</tt>);
}
</PRE>
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<DIV CLASS=sect2>
<h3 CLASS=sect2><A CLASS="TITLE" NAME="JNUT2-CH-28-SECT-22.2">Passed To:</A></h3>

<P CLASS=para>
Applet.getAudioClip(), 
Applet.getImage(), 
Applet.play(), 
AppletContext.getAudioClip(), 
AppletContext.getImage(), 
AppletContext.showDocument(), 
HttpURLConnection(), 
Toolkit.getImage(), 
URL(), 
URL.sameFile(), 
URLConnection(), 
URLStreamHandler.openConnection(), 
URLStreamHandler.parseURL(), 
URLStreamHandler.setURL(), 
URLStreamHandler.toExternalForm()

</DIV>

<DIV CLASS=sect2>
<h3 CLASS=sect2><A CLASS="TITLE" NAME="JNUT2-CH-28-SECT-22.3">Returned By:</A></h3>

<P CLASS=para>
Applet.getCodeBase(), 
Applet.getDocumentBase(), 
AppletStub.getCodeBase(), 
AppletStub.getDocumentBase(), 
Class.getResource(), 
ClassLoader.getResource(), 
ClassLoader.getSystemResource(), 
URLConnection.getURL()

</DIV>

<DIV CLASS=sect2>
<h3 CLASS=sect2><A CLASS="TITLE" NAME="JNUT2-CH-28-SECT-22.4">Type Of:</A></h3>

<P CLASS=para>
URLConnection.url

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